孩子平安的消息使她放心了.The news that her child was safe eased her mind.想到这, 来了一点平安的睡意.This decision reached , he finally felt a placid drowsiness steal over him.我听到他平安的消息时才松了一口气.I breathed / heaved a sigh of relief when I heard he...
大小 ( 直径 ) 的变化包括图象的扩大.The variations of size ( diameter ) consist of a blowing - up of the images.一般来说, 最小器件图形大约是电子束直径的4倍.As a rule of thumb , the minimum device feature is about 4 times the beam diameter.更小直径的光纤能在探测器中使用 ...